Walmart Global Tech Software Engineering Intern interview questions

First interview was a technical with coding and short answer questions, and then second was a behavior with technical questions but not coding questions. First interview was an hour, second was between 30 and 45 minutes.

I contacted a recruiter at a career fair. In a week I was given a task related to full-stack development (cant disclose task). Which I had to complete in 1 day.Next day I had an interview with a senior software engineer where I was asked to explain how i did the task. After clearing this round, there was a 1 hour interview including technical + behavioral questions. I did extremely well in the round, and was contacted the next day by the recruiter asking about my location preferences. Then for 2 weeks no response. And when i contacted them, they said you are rejected with no reason.